CN101816287B - Method for culturing Iris pseudacorus callus - Google Patents
Method for culturing Iris pseudacorus callus Download PDFInfo
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- CN101816287B CN101816287B CN2010101629830A CN201010162983A CN101816287B CN 101816287 B CN101816287 B CN 101816287B CN 2010101629830 A CN2010101629830 A CN 2010101629830A CN 201010162983 A CN201010162983 A CN 201010162983A CN 101816287 B CN101816287 B CN 101816287B
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- 206010020649 Hyperkeratosis Diseases 0.000 title claims abstract description 91
- 241001633663 Iris pseudacorus Species 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000012258 culturing Methods 0.000 title abstract 4
- 239000000725 suspension Substances 0.000 claims abstract description 19
- 239000007787 solid Substances 0.000 claims abstract description 18
- 239000012879 subculture medium Substances 0.000 claims abstract description 14
- 239000004677 Nylon Substances 0.000 claims abstract description 6
- 229920001778 nylon Polymers 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 230000001954 sterilising effect Effects 0.000 claims description 13
- 239000012531 culture fluid Substances 0.000 claims description 10
- 239000012153 distilled water Substances 0.000 claims description 10
- 238000004659 sterilization and disinfection Methods 0.000 claims description 10
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 9
- 229930006000 Sucrose Natural products 0.000 claims description 9
- 108010079058 casein hydrolysate Proteins 0.000 claims description 9
- 239000005720 sucrose Substances 0.000 claims description 9
- 239000006870 ms-medium Substances 0.000 claims description 8
- 229920000936 Agarose Polymers 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000306 component Substances 0.000 claims description 6
- 238000011010 flushing procedure Methods 0.000 claims description 6
- QOFJYAIAWNGTOH-UHFFFAOYSA-N C(C)OCC(=O)O.ClC1=CC=CC(=C1)Cl Chemical compound C(C)OCC(=O)O.ClC1=CC=CC(=C1)Cl QOFJYAIAWNGTOH-UHFFFAOYSA-N 0.000 claims description 4
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 4
- 229920000053 polysorbate 80 Polymers 0.000 claims description 4
- 238000005352 clarification Methods 0.000 claims description 3
- 238000005374 membrane filtration Methods 0.000 claims description 3
- 241000894006 Bacteria Species 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 230000006698 induction Effects 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract description 3
- 239000012528 membrane Substances 0.000 abstract description 3
- 241000196324 Embryophyta Species 0.000 description 13
- 230000001939 inductive effect Effects 0.000 description 5
- 239000001963 growth medium Substances 0.000 description 4
- 238000004114 suspension culture Methods 0.000 description 4
- 238000009395 breeding Methods 0.000 description 3
- 230000001488 breeding effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000005631 2,4-Dichlorophenoxyacetic acid Substances 0.000 description 1
- 241000589158 Agrobacterium Species 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- 241000209510 Liliopsida Species 0.000 description 1
- 108700019146 Transgenes Proteins 0.000 description 1
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000012136 culture method Methods 0.000 description 1
- 230000032459 dedifferentiation Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229960002523 mercuric chloride Drugs 0.000 description 1
- LWJROJCJINYWOX-UHFFFAOYSA-L mercury dichloride Chemical compound Cl[Hg]Cl LWJROJCJINYWOX-UHFFFAOYSA-L 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000009261 transgenic effect Effects 0.000 description 1
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- Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
The invention discloses a method for culturing Iris pseudacorus callus, which comprises the following steps of: when the diameter of the callus on a plumule of an Iris pseudacorus seed exceeds 0.5cm, cutting the callus from the plumule of the seed, inoculating the callus to a fresh solid subculture medium for subculture, and then performing subculture for one time every two weeks; taking a grain of the callus out, putting the callus on sterile filter paper, clipping the grain of the callus into small blocks with forceps, adding the small blocks into fresh culture solution, culturing the small blocks for two weeks at the temperature of 25 DEG C and the speed of 90rpm to form a callus suspension, and inoculating the callus suspension to the fresh culture solution in a volume ratio of 1 to 30 for subculture for two weeks; and when the callus is needed for rapid propagation or transgenosis, filtering the callus suspension by using a sterile nylon membrane with an aperture of 50 meshes to obtain a large block of callus, inoculating the large block of callus to the solid subculture medium for later use, and continuously culturing the callus suspension left after filtration. The method of the invention has simple process and quick callus induction.
Description
Technical field
The present invention relates to a kind of cultural method of Iris pseudacorus callus.
Background technology
Although there is dispute in transgenic technology, genetically modified plants are used increasingly extensive in fields such as agricultural production, environmental protection, medical treatment.The method that is used to make up genetically modified plants has multiple, but the most ripe at present method is through agrobacterium mediation method.Usually, get the purpose plant explants and induce callus, be used for transgeneic procedure.
In addition, the quick breeding of plant usually needs the part of plant corpus is induced into callus, and callus forms whole plant through differentiation step more again, realizes the quick breeding of plant.
Once more, plant callus can be used for the preservation of germ plasm resource, the plant induction of improved seeds can be become callus, and callus is beneficial to going down to posterity of improved seeds by being differentiated to form the filial generation that proterties does not change.
At last, yellow flag belongs to annual emergent aquactic plant or the living plant of bank, is used for manmade landscape, artificial landscape's construction of ecosystems more.Yellow flag has flourishing root system, can absorb heavy metal, and have certain durability against pollution.Because yellow flag has bigger biomass, has the certain removal water body nitrogen phosphorus and the ability of organic contamination.
Summary of the invention
Technical problem to be solved by this invention provides a kind of cultural method of simple Iris pseudacorus callus, so that callus obtains fast breeding at short notice and do not need callus to induce again, thereby provides wide variety of materials for plant transgene.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of cultural method of Iris pseudacorus callus, it comprises the steps:
(1) when the callus diameter on the yellow flag seed plumule surpasses 0.5cm, it is excised from the seed plumule, be inoculated on the fresh solid subculture medium, carry out successive transfer culture, after this per 2 all successive transfer culture once;
(2) (diameter is about 0.5~1cm) and presss from both sides into the fritter that diameter is 0.1~0.2cm with tweezers on aseptic filter paper to take out the callus through step (1) successive transfer culture, put into fresh culture fluid, under 25 ℃, 90 rev/mins conditions, cultivated for 2 weeks, form callus suspension, callus suspension is inoculated into by 1: 30 (v/v) carries out successive transfer culture in the fresh culture fluid, the successive transfer culture cycle was 2 weeks;
(3) when using callus, needs breed fast or during transgenosis, use the callus suspension in the aseptic nylon membrane filtration step (2) in 50 order apertures, the bulk callus that obtains (promptly can not by the callus in 50 order apertures) is transferred to standby on the solid subculture medium (for example follow-up fast numerous or transgeneic procedure), filters the remaining callus suspension in back and continues to cultivate according to the method for step (2);
In step (1) and (3), described solid subculture medium component is as follows: the MS medium, and other adds the sucrose that final concentration is 30g/L, the caseinhydrolysate of 500mg/L, 2mg/L 2,4 dichloro benzene ethoxyacetic acid (2,4-D), the 3g/L agarose;
In the step (2), described culture fluid component is as follows: the MS medium, and other adds sucrose, the caseinhydrolysate of 500mg/L, 2mg/L 2 that final concentration is 30g/L, 4-D;
Wherein, the callus on the yellow flag seed plumule is induced as follows: the yellow flag seed of the bacterium of will going out is inoculated on the solid culture medium, places 25 ℃, following 2 weeks of cultivation of dark condition, induces callus; Described solid culture medium component is as follows: the MS medium, other adds the sucrose that final concentration is 30g/L, the caseinhydrolysate of 500mg/L, 2mg/L2,4-D, 3g/L agarose.
Above-mentioned yellow flag seed is sterilized as follows:
(a) gather the yellow flag seed, the manual shell of removing;
(b) step (a) seeds treated is placed under the running water rinse well;
(c) be in Tween 80 aqueous solution of 0.01% (v/v) with step (b) seeds treated bubble in concentration, stirred 24~48 hours;
(d) with distilled water flushing step (c) seeds treated, till clarification of water;
(e) step (d) seeds treated is put in the alcohol of 75% (v/v), stirred 90~120 seconds;
(f) alcohol is toppled over away, add the distilled water of sterilization, wash 3~4 times;
(g) liquor natrii hypochloritis that the above-mentioned seed after step (f) processing is put into 30% (v/v) stirred 30~60 minutes;
(h) liquor natrii hypochloritis is toppled over away the distilled water flushing seed of usefulness sterilization 6~8 times.
Beneficial effect: among the present invention, set up the suspension culture system of Iris pseudacorus callus, the foundation of this system, can be good at preserving callus, the mode of this successive transfer culture is finer and close more than the callus that solid culture medium obtains, and the surface is Paint Gloss, and color is homogeneous more.Simultaneously, after suspension culture was set up, callus can constantly be bred, and forms the callus of a lot of fritters, made callus quantity obtain rapidly enlarging.Thereby avoid from the beginning inducing of callus, save time, cost.In addition, fresh yellow flag seed only can collect in the fall.Old seed a large amount of microorganisms that often grow nonparasitically upon another plant are caused bigger difficulty to experiment.Set up after the suspension culture system of the present invention, can avoid the predicament that produces because of kind of subproblem.
Embodiment
According to following embodiment, the present invention may be better understood.Yet, those skilled in the art will readily understand that embodiment only is used to illustrate the present invention, and should also can not limit the present invention described in detail in claims.
Embodiment 1: the sterilization of yellow flag seed.
Gather the yellow flag seed autumn, manual method is removed the seed exocuticle.Then seed is rinsed well with running water.The seed of rinsing well is placed in the large beaker of 2L, adds the distilled water of about 500mL, and add the Tween 80 of 0.01% (v/v) in water, put into stirrer, gentle agitation is 24 hours on magnetic stirrer.Next day, take out seed, use distilled water flushing, till clarification of water.Seed is put in the alcohol of 75% (v/v), constantly stirs, sterilized about 90 seconds, carefully inclining alcohol, adds the distilled water of sterilization, washes 3~4 times, is not shorter than 5 minutes at every turn; Then seed is put into the liquor natrii hypochloritis of 30% (v/v), constantly stirred, sterilized 30 minutes, the liquor natrii hypochloritis that inclines, the distilled water flushing seed of usefulness sterilization 6~8 times is not shorter than 5 minutes at every turn.
Embodiment 2: the inducing of callus.
The seed of sterilizing is put on the filter paper of sterilizing, blots the water of the surface of the seed; Then seed is inoculated into be equipped with 20mL MS solid culture medium (wherein add the sucrose that final concentration is 30g/L, the caseinhydrolysate of 500mg/L, 2mg/L2,4-D, in the blake bottle of 3g/L agarose, every blake bottle can be inoculated 3 seeds; Blake bottle is placed under the dark condition, cultivate about 2 time-of-weeks, can induce callus for 25 ℃.
Embodiment 3: the cultivation of callus.
(1) when the callus diameter reaches 0.5cm, it is excised from the seed plumule, be inoculated into (MS medium on the fresh solid subculture medium, other adds the sucrose that final concentration is 30g/L, the caseinhydrolysate of 500mg/L, 2mg/L2,4-D, the 3g/L agarose carries out successive transfer culture, and after this per 2 all successive transfer culture once.
(2) (diameter is about 0.5~1cm) and presss from both sides into fritter with tweezers on aseptic filter paper (diameter is about 0.1~0.2cm) to take out a callus, put into fresh culture fluid (MS medium, other adds the sucrose that final concentration is 30g/L, the caseinhydrolysate of 500mg/L, and 2mg/L 2, among the 4-D, 25 ℃, cultivated for 2 weeks down, form callus suspension for 90 rev/mins, callus suspension is inoculated into by 1: 30 (v/v) carries out successive transfer culture in the fresh culture fluid, the successive transfer culture cycle was 2 weeks.
(3) when using callus, needs breed fast or during transgenosis, use the callus suspension in the aseptic nylon membrane filtration step (2) in 50 order apertures, the bulk callus that obtains is transferred to standby on the solid subculture medium (for example follow-up fast numerous or transgeneic procedure), filters the remaining callus suspension in back and continues to cultivate according to the method for step (2).For example, method according to step (2) is put into fresh culture fluid with the fritter callus, at 25 ℃, after cultivating a week under 90 rev/mins, this moment, more existing bulk callus formed in culture fluid, if at this moment needing to use callus breeds or operation such as transgenosis fast, the aseptic nylon membrane in available 50 order apertures filter out the callus of bulk and be transferred on the solid subculture medium cultivate standby, the callus suspension that filtration is got rid of behind the bulk callus continues to be placed on 25 ℃, cultivate again a week under 90 rev/mins, afterwards again with callus suspension set by step the successive transfer culture method in (2) cultivate.After the successive transfer culture process in, if there is the callus of bulk to form, can use the aseptic nylon membrane in 50 order apertures to filter out the callus of bulk at any time this moment and be transferred to and cultivate standbyly on the solid subculture medium, filter the callus suspension of getting rid of behind the bulk callus and proceed successive transfer culture.
By above-mentioned cultural method, in the month, it is the callus of 1~2mm that 500mL suspension culture system (the initial callus that only needs about a diameter 5mm) can form 30 to 50 diameters at 1-2.
Embodiment 4:
Earlier carry out the sterilization of seed and inducing of callus by the method for embodiment 1 and 2, a seed only can form a callus, and callus can be grown after the successive transfer culture 1-2 month to about 2~3mm.
In practical operation, inducing of monocotyledon callus has certain difficulty, and dedifferentiation is difficult, and healing rate is lower.Therefore, the practical operation of inducing of callus exists a large amount of problems.In addition, yellow flag seed exocuticle is difficult to remove, and contain a large amount of epiphytes, clorox even mercuric chloride also are difficult to sterilize fully, in the sterilizing methods among the present invention seed is used after the water logging bubble of the Tween80 that contains 0.01% (v/v), can improve the efficient of sterilization, but in the callus induction process sterilization to appoint so be the matter of utmost importance of callus induction.
For above difficulty, embodiment 3 can effectively be avoided the superinduce of callus, thereby raises the efficiency, and has saved cost.
Claims (3)
1. the cultural method of an Iris pseudacorus callus is characterized in that it comprises the steps:
(1) when the callus diameter on the yellow flag seed plumule surpasses 0.5cm, it is excised from the seed plumule, be inoculated on the fresh solid subculture medium, carry out successive transfer culture, after this per 2 all successive transfer culture once;
(2) take out a callus and on aseptic filter paper, press from both sides into the fritter that diameter is 0.1~0.2cm with tweezers through step (1) successive transfer culture, put into fresh culture fluid, under 25 ℃, 90 rev/mins conditions, cultivated for 2 weeks, form callus suspension, callus suspension is inoculated into by 1: 30 (v/v) carries out successive transfer culture in the fresh culture fluid, the successive transfer culture cycle was 2 weeks;
(3) when using callus, needs breed fast or during transgenosis, use the callus suspension in the aseptic nylon membrane filtration step (2) in 50 order apertures, the bulk callus that obtains is transferred on the solid subculture medium standby, filters the remaining callus suspension in back and continues to cultivate according to the method for step (2);
In step (1) and (3), described solid subculture medium component is as follows: the MS medium, and other adds the sucrose that final concentration is 30g/L, the caseinhydrolysate of 500mg/L, 2mg/L 2,4 dichloro benzene ethoxyacetic acid, 3g/L agarose;
In the step (2), described culture fluid component is as follows: the MS medium, other adds sucrose, the caseinhydrolysate of 500mg/L, 2mg/L 2,4 dichloro benzene ethoxyacetic acid that final concentration is 30g/L.
2. the cultural method of Iris pseudacorus callus according to claim 1, it is characterized in that the callus on the yellow flag seed plumule induces as follows: the yellow flag seed of the bacterium of will going out is inoculated on the solid subculture medium, place 25 ℃, following 2 weeks of cultivation of dark condition, induce callus; Described solid subculture medium component is as follows: the MS medium, other adds the sucrose that final concentration is 30g/L, the caseinhydrolysate of 500mg/L, 2mg/L 2,4 dichloro benzene ethoxyacetic acid, 3g/L agarose.
3. the cultural method of Iris pseudacorus callus according to claim 2 is characterized in that the yellow flag seed sterilizes as follows:
(a) gather the yellow flag seed, the manual shell of removing;
(b) step (a) seeds treated is placed under the running water rinse well;
(c) be in Tween 80 aqueous solution of 0.01% (v/v) with step (b) seeds treated bubble in concentration, stirred 24~48 hours;
(d) with distilled water flushing step (c) seeds treated, till clarification of water;
(e) step (d) seeds treated is put in the alcohol of 75% (v/v), stirred 90~120 seconds;
(f) alcohol is toppled over away, add the distilled water of sterilization, wash 3~4 times;
(g) liquor natrii hypochloritis that the above-mentioned seed after step (f) processing is put into 30% (v/v) stirred 30~60 minutes;
(h) liquor natrii hypochloritis is toppled over away the distilled water flushing seed of usefulness sterilization 6~8 times.
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CN2010101629830A CN101816287B (en) | 2010-05-05 | 2010-05-05 | Method for culturing Iris pseudacorus callus |
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CN2010101629830A CN101816287B (en) | 2010-05-05 | 2010-05-05 | Method for culturing Iris pseudacorus callus |
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CN101816287B true CN101816287B (en) | 2011-12-14 |
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Families Citing this family (4)
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CN102577954B (en) * | 2012-02-15 | 2013-09-18 | 南京大学 | Method for carrying out callus induction and differentiation and growth of seedlings on Typha latifolia root tips |
CN104996302B (en) * | 2015-08-20 | 2018-05-18 | 浙江大学 | A kind of method for improving Iris pseudacorus callus inductivity |
CN105052743B (en) * | 2015-08-20 | 2017-06-13 | 浙江大学 | A kind of effective method for preserving yellow flag embryo callus |
CN110771512B (en) * | 2019-11-28 | 2022-06-07 | 东北林业大学 | Efficient induction method of rabdosia lophanthide callus |
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CN101263787A (en) * | 2008-05-08 | 2008-09-17 | 吴月燕 | Louis iris tissue culture fast seedling establishment and ecological application method |
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